Tags

Type your tag names separated by a space and hit enter

Incidence of air travel-related pulmonary embolism at the Madrid-Barajas airport.
Arch Intern Med. 2003 Dec 8-22; 163(22):2766-70.AI

Abstract

BACKGROUND

Prolonged air travel and the associated immobilization are risk factors for venous thromboembolism. The occurrence of pulmonary thromboembolism (PTE) under these circumstances is referred to as economy class syndrome. We assessed the incidence of symptomatic PTE in passengers on long-haul flights arriving at Madrid-Barajas Airport, Madrid, Spain, and the association with the number of flight hours.

METHODS

We retrospectively reviewed cases of PTE among international travelers arriving at Madrid-Barajas Airport between January 1995 and December 2000. Patients presenting with symptoms of deep venous thrombosis but without symptoms of PTE were excluded. Pulmonary thromboembolism was identified using an algorithm of diagnostic tests. The incidence of PTE and the association with flight duration was assessed.

RESULTS

The average number of passengers per year who arrived at the airport on flights originating abroad in the period analyzed was 6 839 222. Sixteen cases of PTE were detected over the 6-year period. All patients with travel-associated PTE had flight durations of greater than 6 hours. The overall incidence of PTE was 0.39 per 1 million passengers (95% confidence interval [CI], 0.20-0.58). On flights that lasted between 6 and 8 hours, the incidence was 0.25 per 1 million passengers (95% CI, 0-0.75), while on flights longer than 8 hours, the incidence was 1.65 per 1 million passengers (95% CI, 0.81-2.49) (P<.001).

CONCLUSIONS

Air travel is a risk factor for PTE, and the incidence of PTE increases with the duration of the air travel. However, the low incidence of PTE among long-distance passengers, similar to that observed in other international airports, does not justify social alarm.

Authors+Show Affiliations

Pneumology Department, Ramón y Cajal Hospital, Madrid, Spain.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

14662631

Citation

Pérez-Rodríguez, Esteban, et al. "Incidence of Air Travel-related Pulmonary Embolism at the Madrid-Barajas Airport." Archives of Internal Medicine, vol. 163, no. 22, 2003, pp. 2766-70.
Pérez-Rodríguez E, Jiménez D, Díaz G, et al. Incidence of air travel-related pulmonary embolism at the Madrid-Barajas airport. Arch Intern Med. 2003;163(22):2766-70.
Pérez-Rodríguez, E., Jiménez, D., Díaz, G., Pérez-Walton, I., Luque, M., Guillén, C., Mañas, E., & Yusen, R. D. (2003). Incidence of air travel-related pulmonary embolism at the Madrid-Barajas airport. Archives of Internal Medicine, 163(22), 2766-70.
Pérez-Rodríguez E, et al. Incidence of Air Travel-related Pulmonary Embolism at the Madrid-Barajas Airport. Arch Intern Med. 2003 Dec 8-22;163(22):2766-70. PubMed PMID: 14662631.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Incidence of air travel-related pulmonary embolism at the Madrid-Barajas airport. AU - Pérez-Rodríguez,Esteban, AU - Jiménez,David, AU - Díaz,Gema, AU - Pérez-Walton,Ivan, AU - Luque,Manuel, AU - Guillén,Carmen, AU - Mañas,Eva, AU - Yusen,Roger D, PY - 2003/12/10/pubmed PY - 2004/1/8/medline PY - 2003/12/10/entrez SP - 2766 EP - 70 JF - Archives of internal medicine JO - Arch. Intern. Med. VL - 163 IS - 22 N2 - BACKGROUND: Prolonged air travel and the associated immobilization are risk factors for venous thromboembolism. The occurrence of pulmonary thromboembolism (PTE) under these circumstances is referred to as economy class syndrome. We assessed the incidence of symptomatic PTE in passengers on long-haul flights arriving at Madrid-Barajas Airport, Madrid, Spain, and the association with the number of flight hours. METHODS: We retrospectively reviewed cases of PTE among international travelers arriving at Madrid-Barajas Airport between January 1995 and December 2000. Patients presenting with symptoms of deep venous thrombosis but without symptoms of PTE were excluded. Pulmonary thromboembolism was identified using an algorithm of diagnostic tests. The incidence of PTE and the association with flight duration was assessed. RESULTS: The average number of passengers per year who arrived at the airport on flights originating abroad in the period analyzed was 6 839 222. Sixteen cases of PTE were detected over the 6-year period. All patients with travel-associated PTE had flight durations of greater than 6 hours. The overall incidence of PTE was 0.39 per 1 million passengers (95% confidence interval [CI], 0.20-0.58). On flights that lasted between 6 and 8 hours, the incidence was 0.25 per 1 million passengers (95% CI, 0-0.75), while on flights longer than 8 hours, the incidence was 1.65 per 1 million passengers (95% CI, 0.81-2.49) (P<.001). CONCLUSIONS: Air travel is a risk factor for PTE, and the incidence of PTE increases with the duration of the air travel. However, the low incidence of PTE among long-distance passengers, similar to that observed in other international airports, does not justify social alarm. SN - 0003-9926 UR - https://www.unboundmedicine.com/medline/citation/14662631/Incidence_of_air_travel_related_pulmonary_embolism_at_the_Madrid_Barajas_airport_ L2 - https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/vol/163/pg/2766 DB - PRIME DP - Unbound Medicine ER -